ZeroAvia has made significant progress in advancing the certification of its 600kW electric propulsion system (EPS) for hydrogen-electric aircraft. The company has received a G-1 Issue Paper from the FAA, marking a crucial milestone in the certification process. This EPS is a core component of ZeroAvia's wider ZA600 hydrogen-electric powertrain, designed for commercial aircraft seating up to 20 passengers. The 600kW EPS is characterized by its high efficiency, fault tolerance, and specific power, making it suitable for various aircraft applications. In addition to pursuing FAA certification, ZeroAvia is also working towards certifying its powertrain with the UK Civil Aviation Authority. By enhancing aerospace applicability and performance of power electronics and electric motors, the company aims to supply its electric propulsion system to other clean aviation innovators. ZeroAvia's Founder and CEO, Val Miftakhov, envisions a future where hydrogen-electric technology revolutionizes commercial air transport, offering cleaner and more efficient flight options. The company's commitment to vertical integration has led to the development of a diverse portfolio of fuel cell, power electronics, and electric motor technology. With plans to supply the 600kW EPS to a broader market and nearly 3000 orders for its powertrains and components, ZeroAvia is poised to make a significant impact on the aviation industry. The company has conducted extensive testing of its hydrogen-electric engine on different aircraft models and is working on securing certifications for various aircraft types, including regional turboprop aircraft. Overall, ZeroAvia's progress in advancing electric propulsion technology for hydrogen-electric aircraft signifies a positive step towards a cleaner and more sustainable future in aviation.